--- USRYIELD 1399. NEUTRON -33. Rbox RW Nc2 USRYIELD 5. 1E-14 24.3.14159265 0.0 3. & * * **** N time-dist. target -> air -> hole -> count2... * USRYIELD 2567. NEUTRON -33. Rbox RW Nc2Time USRYIELD 1. 1E-10 100. 5. 1E-14 3. & - I use the same bin values as it is given in 33_tab.lis - all my T-values are bigger the USRYIELD yield by the factor of 125 ! ...where is it come from ?! - example : a) from USRYIELD: x1 x2 N er 3.1622793E-08 3.9810740E-08 924.2861 4.037031 b) from my output : (value = N observed / T-bin-width) xx 3.5717e-02 1.1541e+05 ...and ratio = 1.1541e+05 / 924.2861 = 124.86 - ?! I cannot find any time-information about this in the manual.. ------------------------------------------ Question-2: - when I compare my output with energy distribution using USRYIYLD card I see the following : - I use the same bin distribution as it is done in 33_tab.lis - when I get N neutrons for given bin - I consider it as the integral for the bin interval and angle interval : 3.14156 So, to get USRYIELD output value I have to divide N observed by bin interval and angle interval: dN/dE dAngle = Nobserved / bin / 3.14156 - but when I compare it to the values in fluka output : I have to use another expression : dN/dE * dAngle = Nobserved / bin * 3.14156 to get the same result ! why is it so ? - example x1 x2 N er 1.3490300E-12 1.9761499E-12 19894.96 99.00000 and my output : 1.6626e-03 6.2508e+03 19894.96 / 6.2508e+03 = 3.182 ------------------------------------------------- thank you. Vladimir PS. let me know if you need any file __________________________________________________________________________ You can manage unsubscription from this mailing list at https://www.fluka.org/fluka.php?id=acc_infoReceived on Thu Apr 25 2019 - 13:51:53 CEST
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